Table 3

 Final diagnoses

First authorGITRespiratoryCNSCVSENTOtherUnknown
*Some infants had multiple diagnoses.
U, unknown; includes diagnoses listed as “apnoea”, “cyanotic episode”, “pallor”, “funny turn”.
Normal includes diagnoses listed as “Moro reflex”, “startle reflex”, “apnoea monitor problem”.
ASD, atrial septal defect; GE, gastroenteritis; GORD, gastro-oesophageal reflux disease, IVH, intraventricular haemorrhage; LRTI, lower respiratory tract infection; PDA, patent ductus arteriosus; SAH, subarachnoid haemorrhage; SVT, supraventricular tachycardia; UTI, urinary tract infection; URTI, upper respiratory tract infection; VSD, ventricular septal defect.
First figure after diagnosis is number of times diagnosis is reported in study. Percentage figure in brackets is number of times diagnosis is reported in study/total number of ALTE episodes evaluated in study. Except for study B, number of episodes = number of infants.
Davies, n = 65GORD 17 (26%) GE 1 (2%)Pertussis 6 (9%) Other LRTI 6 (9%)Seizures 5 (8%) Febrile seizure 1 (2%) Hypocalcaemic seizure 1 (2%) Brain tumour 1 (2%)PDA 1 (2%) Atrial tachycardia 1 (2%)Laryngomalacia 1 (2%)UTI 5 (8%) Factitious illness 2 (3%) Opiates 1 (3%) Developmental delay 1 (3%)15 (23%)
Gray, n = 130* No. of episodes = 163GORD 30 (18%) GE 4 (2%)LRTI 15 (9%) Pertussis 9 (6%) URTI 7 (4%) Asthma 2 (1%)Seizures 40 (25%) Febrile seizure 20 (12%) Head injury 2 (1%)0Subglottic stenosis 1 (0.5%)Choking 8 (5%) Normal 4 (2%) Unspecified infection 3 (2%) UTI 2 (1%) Vomit 2 (1%) Feeding problems 2 (1%) Development delay 1 (0.5%) Vaccination reaction 1 (0.5%)21 (13%)
Kurz, n = 60*GORD 18 (30%) GE 2 (3%) Strangulated hernia 1 (2%)URTI 11 (18%) RSV 6 (10%) Aspiration pneumonia 2 (3%) Pertussis 1 (2%)Seizures 4 (7%) Hydrocephalus 2 (3%) Encephalitis 1 (2%) IVH 1 (2%) Onidine’s syndrome 1 (2%) Central apnoea syndrome 12 (20%) Werdnig Hoffman 1 (2%)Fibroelastosis 1 (1%) Cardiomyopathy 1 (1%)Oropharyngeal stability on bronchoscopy 2 (3%)Development deficit 3 (5%) Floppy infant 1 (2%) Hypoglycaemia1 (2%) Hypocalcaemia 1 (2%) Carnitine def. 2 (3%) Organic acidopathy 1 (2%) UTI 1 (2%)5 (8%)
Laisne, n = 100*GORD 66 (66%)0Unspecified 5 (5%)0Unspecified 6 (6%)Vagal hyperreactivity 13 (13%) Breath holding 8 (8%) Toxins 4 (4%) Metabolic 3 (3%) Infectious 3 (3%)9 (9%)
Sheikh, n = 74GORD 49 (66%)RSV 7 (9%) Pneumonia 1 (1%)Seizure 3 (4%)Hypoplastic left ventricle 1 (1%) ASD+VSD 1 (1%)0Aspiration 1(1%)11 (15%)
Tal, n = 65GORD 7 (11%) Colic 1 (2%)0Seizure 3 (5%)00054 (83%)
Tsukada, n = 19*GORD 6 (32%) Oesophageal dysfunction 2 (11%)Pertussis 5 (26%) URTI 3 (16%)Epilepsy 1 (5%)0Larnygostenosis 2 (11%)Choking 2 (11%)0
V-Wauters, n = 130GORD 34 (26%)0Seizure 5 (4%) Encephalitis 1 (1%) Meningitis 1 (1%) SAH 1 (1%)0ENT infection 2 (2%) Anatomical airway obstruction 12 (9%)Breath holding 9 (7%) Vagal reaction 2 (2%) Hypomagnesaemia 1 (1%) Beta ketothiolase def. 1 (1%) Breast milk opiates 6 (5%) Normal 1 (1%)54 (42%)